According to BOXOFFICE.com's Early Weekend Estimates, it looks as though Transformers: Revenge of the Fallen is on pace to remain in first place for the second weekend in a row. The DreamWorks/Paramount release will fall just shy of hitting the $300 million mark, and it will hit that plateau on Monday, its 13th day of release.

Ice Age: Dawn of the Dinosaurs isn't far behind Transformers 2. The third film is Fox's lucrative animated franchise will reach more than $70 million by the end of Sunday. Ice Age 3 should show some solid staying power in the weeks to come considering that many major July releases such as Brüno, Funny People and The Ugly Truth will appeal to adult audiences.

Public Enemies has debuted with a relatively mediocre haul. The Universal release reportedly cost more than $100 million to produce, which means that it needed to open much stronger. However, director Michael Mann's films usually play much better abroad so Enemies still has a shot at being profitable.

Elsewhere in the top 10, The Hangover is going to cross the $200 million mark this weekend.

Check back tomorrow for studio weekend estimates.